Location: Mirpur 2/60, Fit Monipur School. The sound quality is exceptional; no need to say much as this is the world's top master copy. It uses the Airoha v4 1562AFF+FB gold-conductive chipset, which is the best in the world. You will understand the sound quality once you hear it. Listen first, and if you like it, buy it. Thank you. WhatsApp number available.